#include <stdio.h>

struct Cube{
    float l;
    float w;
    float h;
};
int main(){
    struct Cube c = {10,20,30};
    float v = c.h * c.w * c.l;
    printf("volume %f\n",v);
    float area = (c.l * c.w + c.l * c.h + c.w * c.h) * 2;
    printf("area %f\n",area);
    return 0;
}
